A case of uterine inclusion cysts in a sow

Elisa Ruiz-Riera,Mariano Domingo,Enric Vidal,Bernat Martí-Garcia,Joaquim Segalés,Miquel Nofrarias

doi:10.1186/s40813-021-00237-8

Elisa Ruiz-Riera, Mariano Domingo + Show 4 more

Open Access

https://doi.org/10.1186/s40813-021-00237-8

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Abstract

BackgroundSerosal inclusion cysts are thin walled-structures located on the peritoneal surface of the uterus, frequently observed as multiple cystic structures in aggregates or grape-like clusters containing a clear, non-viscous fluid. In human and veterinary medicine, they are thought to be developed under hormonal effects, or after manipulation or inflammation of the reproductive tract. However, they have not yet been described in swine.Case presentationA uterus of a 3-year-old crossbreed sow was condemned at slaughter due to the presence of multiples cystic cavities attached to the serosal surface. Microscopically, multiple cystic dilations emerging from the serosa were lined by a simple and flattened epithelium (cytokeratine positive and vimentin negative on immunohistochemistry) supported by a subepithelial layer of collagen. Grossly and histologically, they were diagnosed as serosal inclusion cysts.ConclusionTo the authors’ knowledge, this report represents the first description of serosal inclusion cysts in sows. These lesions should be taken into consideration within the differential diagnostic list of cystic peritoneal lesions such as cystic neoplasms, congenital cysts, and parasitic diseases.

Highlights

Serosal inclusion cysts are thin walled-structures located on the peritoneal surface of the uterus, frequently observed as multiple cystic structures in aggregates or grape-like clusters containing a clear, non-viscous fluid
To the authors’ knowledge, this report represents the first description of serosal inclusion cysts in sows
Serosal inclusion cysts are thin-walled structures located on the peritoneal surface of the uterus, frequently shown as multiple cystic structures in aggregates or grape-like clusters containing clear non-viscous fluid [1, 2]

Summary

Conclusion

To the authors’ knowledge, this report represents the first description of serosal inclusion cysts in sows. These lesions should be taken into consideration within the differential diagnostic list of cystic peritoneal lesions such as cystic neoplasms, congenital cysts, and parasitic diseases

Background

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Discussion and conclusions